CN113843968A - Method and device for automatically replacing mold core - Google Patents
Method and device for automatically replacing mold core Download PDFInfo
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- CN113843968A CN113843968A CN202110945492.1A CN202110945492A CN113843968A CN 113843968 A CN113843968 A CN 113843968A CN 202110945492 A CN202110945492 A CN 202110945492A CN 113843968 A CN113843968 A CN 113843968A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 81
- 238000009434 installation Methods 0.000 claims description 49
- 230000033001 locomotion Effects 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 27
- 230000009471 action Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 description 10
- 230000017105 transposition Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000003028 elevating effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 108010066114 cabin-2 Proteins 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1742—Mounting of moulds; Mould supports
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Abstract
The invention relates to the technical field of mold changing equipment, in particular to a method and a device for automatically changing a mold core. According to the invention, the mounting position of the mold core on the mold and the mounting position of the mold core on the mold core frame are automatically aligned by changing the position of the mold core frame, and the push-pull mechanism drives the fixture to clamp the mold core to reciprocate between different mounting positions, so that the mold core is automatically replaced, manpower and material resources can be saved, and the mold replacement efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of die changing equipment, in particular to a method and a device for automatically changing a die core.
Background
At present, injection molding machines are rapidly developed in plastic machinery, multiple varieties, small batches and multiple batches of injection molding machines become basic requirements of most customers, frequent replacement of molds cannot be avoided in the injection molding process, the injection molding machines are still replaced by cranes, forklifts and manpower when the molds are replaced, the mold replacement time is long, the labor intensity of workers is high, and therefore the production efficiency is affected.
Chinese patent CN202020386932.5 discloses a die change device and a die change trolley, which comprises a die change table, a transposition mechanism is arranged on the die change table, the transposition mechanism comprises a transposition linear guide rail, a transposition slide block, a transposition ball screw, a nut mounting seat, a connecting plate, a ball screw mounting plate and a transposition motor, a moving platform is driven by the transposition mechanism, at least two die bearing stations are arranged on the moving platform, a push-pull lifting mechanism is arranged above the moving platform, the push-pull lifting mechanism comprises a push-pull mechanism and a lifting mechanism, the push-pull mechanism comprises a push-pull hook bracket, a push-pull linear guide rail, a push-pull slide block, a push-pull ball screw mounting plate, a nut mounting seat, a synchronizing wheel, a synchronous belt, a push-pull motor, a push-pull hook fixing seat and a push-pull hook, and the push-pull lifting mechanism can be used for driving a die on the moving platform. Transposition mechanism drive moving platform lateral shifting in this scheme, push-and-pull elevating system catches on the mould and drives the mould and move on moving platform, but this scheme catches on the mould through the lift of push-and-pull hook, and the mould appears rocking easily in handling, is difficult to aim at the mounted position of mould and mould, can't realize the automatic change of mould.
Disclosure of Invention
The present invention is directed to overcome the disadvantages of the prior art, and provides a method and a device for automatically replacing a mold core, which can achieve automatic alignment between the mold core and a mold core at a mounting position of a mold, and stably transport the mold core to the mounting position or remove the mold core from the mounting position, thereby achieving automatic replacement of the mold core.
In order to solve the technical problems, the invention adopts the technical scheme that:
providing a method for automatically replacing a mold core, wherein the mold core is used for being positioned at a mold mounting position, and the mold core to be replaced is arranged on a mold core frame; the die core frame comprises a plurality of rows of bin bodies which are regularly arranged, the die cores to be replaced are arranged in the bin bodies, and the die core frame respectively realizes transverse movement and longitudinal movement under the driving action of a transverse driving device and a lifting device; the movement of the used mold core or the mold core to be replaced between the mold installation position and the mold core frame is realized through a push-pull mechanism and a clamp, the clamp is connected with the push-pull mechanism, and the clamp is used for clamping the used mold core or the mold core to be replaced; the method comprises the following steps:
s1: determining a first installation position of the in-use mold core on the mold core frame according to the type of the in-use mold core, and planning a first movement path of the mold core frame according to the first installation position;
s2, controlling the transverse driving device and/or the lifting device to move according to the first movement path in the step S1, so that the first installation position is aligned with the mold installation position;
s3: controlling a push-pull mechanism to drive a clamp to move to the side of the used mold core, then controlling the clamp to clamp the used mold core, and then controlling the push-pull mechanism to drive the clamp to clamp the used mold core to move to a first installation position;
s4: planning a second movement path of the mold core frame according to a second installation position of the mold core to be replaced on the mold core frame;
s5: controlling the lateral driving means and/or the lifting means to move according to the second movement path described in the step S4 such that the second mounting position is aligned with the mold mounting position;
s6: and controlling the clamp to clamp the to-be-replaced mold core, then controlling the push-pull mechanism to drive the clamp to clamp the to-be-replaced mold core to move to the mold installation position, and then controlling the push-pull mechanism to drive the clamp to return to the initial position.
The invention relates to a method for automatically replacing a mold core, which comprises the steps of planning a first movement path of a mold core frame when the mold core is replaced, aligning a first installation position with a mold installation position, pulling out a used mold core to the first installation position, leaving the mold installation position for subsequent installation of the mold core to be replaced, planning a second movement path of the mold core frame according to a second installation position of the mold core to be replaced, aligning the second installation position with the mold installation position, driving a clamp to clamp the mold core to be replaced to move to the mold installation position through pushing and pulling, returning a push-pull mechanism to the original position after the mold core to be replaced is installed, avoiding interference on subsequent processing procedures, keeping a transverse driving device and a lifting device static, and conveniently pulling out and putting the mold core back to the original position when the mold core is replaced subsequently. The method for automatically replacing the die core realizes the automatic alignment of the die core and the mounting position of the die core on the die, stably conveys the die core to the mounting position of the die or moves the die core out of the mounting position of the die, thereby realizing the automatic replacement of the die core.
Preferably, the in-use mold core is slidably mounted at a first mounting position or a mold mounting position, and the to-be-replaced mold core is slidably mounted at a second mounting position or a mold mounting position.
Preferably, a transport rail is provided between the mold mounting position and the first mounting position or between the mold mounting position and the second mounting position for guiding the movement of the in-use core and the to-be-exchanged core.
Preferably, the alignment in step S2 and the alignment in step S4 are determined by a positioning mechanism, and the positioning mechanism adopts one or a combination of infrared positioning, ultrasonic positioning, laser positioning, radar positioning, visual positioning, GPS positioning, and photoelectric positioning.
The invention also provides a device for realizing the method for automatically replacing the die core, which comprises a die core frame provided with the die core, and further comprises a transverse driving device, a push-pull mechanism, a lifting device and a clamp for clamping the die core, wherein the transverse driving device is connected with the die core frame and drives the die core frame to transversely move, the lifting device is connected with the die core frame and drives the die core frame to do lifting motion, the clamp is connected with the push-pull mechanism, and the push-pull mechanism can drive the clamp to drive the die core to do reciprocating motion between the installation position on the die and the installation position on the die core frame.
According to the device for automatically replacing the mold core, when the mold core is replaced, the push-pull mechanism pulls the mold core out of the mounting position on the mold to the mold core frame, and when the transverse driving device drives the mold core frame to transversely move, the device drives the mold core to be replaced to transversely move; when the lifting device drives the die core frame to do lifting motion, the die core to be replaced is driven to lift; the push-pull mechanism pushes the die core to be replaced out of the die core frame to the mounting position of the die core on the die for use. The device for automatically replacing the die core can stably carry the die core to the die mounting position or move the die core out of the die mounting position, thereby realizing the automatic replacement of the die core.
Further, the mold core frame comprises a bottom plate and a plurality of rows and columns of cabin bodies which are regularly arranged on the bottom plate, the mold core is in sliding connection with the cabin bodies, and the mold core is in sliding connection with the mold.
The mold comprises a mold core, a mold core frame and a conveying rail, wherein the mold core is arranged on the mold core frame, the conveying rail is arranged on the mold core frame, the mold core frame is arranged on the mold core frame, and the conveying rail is arranged on the mold core frame.
Further, the transverse driving device comprises a first motor and a transmission mechanism for converting the rotation of the first motor into the linear movement of the bottom plate, wherein the first motor is connected with the transmission mechanism, and the transmission mechanism is connected with the bottom plate; the base is arranged below the bottom plate, and the bottom plate is connected above the base in a sliding mode.
Furthermore, the lifting device is a piston cylinder, a cylinder body of the piston cylinder is fixedly arranged on the base, and a piston rod of the piston cylinder drives the bin body to move up and down along the base.
Furthermore, the push-pull mechanism comprises a support frame, a first push-pull assembly and a second push-pull assembly, the support frame is installed on the base, the second push-pull assembly is installed on the support frame, the first push-pull assembly is arranged on the second push-pull assembly, and the output end of the first push-pull assembly is connected with the clamp.
Compared with the background technology, the method and the device for automatically replacing the mold core have the following beneficial effects:
the automatic alignment of the die core and the mounting position of the die core on the die can be realized, the die core is stably conveyed to the mounting position or moved out of the mounting position, and the automatic replacement of the die core is realized.
Drawings
FIG. 1 is a flowchart illustrating a method for automatically replacing a mold insert according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an apparatus for automatically replacing a mold core according to a second embodiment of the present invention at a first view angle;
FIG. 3 is a schematic structural diagram of a second view of an apparatus for automatically replacing a mold core according to a second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a lateral driving device according to a second embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a lifting device according to a second embodiment of the present invention;
FIG. 6 is a schematic view of the connection between the lifting device and the bin body according to the second embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a push-pull mechanism according to a second embodiment of the present invention;
FIG. 8 is a schematic view of a connection structure between a clamp and a support frame according to a second embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a mold insert holder according to a second embodiment of the present invention;
in the drawings: 1-a base; 11 a first opening; 12-a first guide rail; 13-a photosensor; 2-a cabin body; 21-a first guide; 22-a second guide; 23-a backup plate; 231-a guide slider; 24-an intermediate portion; 25-bin level; 3-a bottom plate; 31-a second opening; 32-a first slider; 33-a guide bar; 34-a connecting plate; 35-a rubber belt; 4-a lifting device; 41-cylinder body; 42-a piston rod; 43-a fixed plate; 431-a second guide sleeve; 44-a lifting platform; 45-lifting rod; 46-a connecting seat; 461-first guide sleeve; 47-connecting block; 5-a transverse driving device; 51-a first transmission; 511-a first motor; 512-a first timing pulley; 513-a second synchronous pulley; 514-synchronous belt; 52-a second transmission mechanism; 521-a rotating shaft; 522-a transmission wheel; 6-die core; 61-a pull rod; 7-a transport track; 8, a push-pull mechanism; 81-a support frame; 811-a third guide rail; 812-a third slider; 813-a second cylinder; 82-a scaffold; 821-a second guide rail; 822-a second slider; 83-a first push-pull assembly; 831-third synchronous pulley; 832-fourth timing pulley; 833-a second synchronous belt; 84-a clamp; 841-third cylinder; 842-clamping jaw; 843-a connecting table; 9-mounting the block.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Example one
A method for automatically replacing a mold core is characterized in that the mold core is used and positioned at a mold mounting position, and the mold core to be replaced is arranged on a mold core frame; the mold core frame comprises a plurality of rows of cabin bodies which are regularly arranged, mold cores to be replaced are arranged in the cabin bodies, and the mold core frame respectively realizes transverse movement and longitudinal movement under the driving action of a transverse driving device and a lifting device; the movement of the used mold core or the mold core to be replaced between the mold installation position and the mold core frame is realized through a push-pull mechanism and a clamp, the clamp is connected with the push-pull mechanism, and the clamp is used for clamping the used mold core or the mold core to be replaced; as shown in fig. 1, the method comprises the steps of: s1: determining a first installation position of the in-use mold core on the mold core frame according to the type of the in-use mold core, and planning a first movement path of the mold core frame according to the first installation position;
s2, controlling the transverse driving device and/or the lifting device to move according to the first movement path in the step S1, so that the first installation position is aligned with the mold installation position;
s3: controlling a push-pull mechanism to drive a clamp to move to the side of the used mold core, then controlling the clamp to clamp the used mold core, and then controlling the push-pull mechanism to drive the clamp to clamp the used mold core to move to a first installation position;
s4: planning a second movement path of the mold core frame according to a second installation position of the mold core to be replaced on the mold core frame;
s5: controlling the lateral driving means and/or the lifting means to move according to the second movement path in step S4 such that the second mounting position is aligned with the mold mounting position;
s6: and controlling the clamp to clamp the to-be-replaced mold core, then controlling the push-pull mechanism to drive the clamp to clamp the to-be-replaced mold core to move to the mold installation position, and then controlling the push-pull mechanism to drive the clamp to return to the initial position.
When the mold core is replaced, a first moving path of the mold core frame is planned, the first mounting position is aligned with the mold mounting position, the used mold core is pulled out to the first mounting position, the mold mounting position is vacated for subsequent mold core replacement, a second moving path of the mold core frame is planned according to the second mounting position of the mold core to be replaced, the second mounting position is aligned with the mold mounting position, the clamp is driven by pushing and pulling to clamp the mold core to be replaced to move to the mold mounting position, after the mold core to be replaced is mounted, the pushing and pulling mechanism returns to the original position, interference to subsequent processing procedures is avoided, the transverse driving device and the lifting device are kept static, and the mold core is pulled out and placed back to the original position when the mold core is replaced subsequently. The method for automatically replacing the die core realizes the automatic alignment of the die core and the mounting position of the die core on the die, stably conveys the die core to the mounting position of the die or moves the die core out of the mounting position of the die, thereby realizing the automatic replacement of the die core.
When the mold core is arranged at the first installation position or the mold installation position in a sliding way, the mold core to be replaced is arranged at the second installation position or the mold installation position in a sliding way, and the mold core can be conveniently pushed.
The conveying track is arranged between the die installation position and the first installation position or between the die installation position and the second installation position and used for guiding the movement of the used die core and the die core to be replaced, and meanwhile, the conveying track also has a supporting function on the die core.
The alignment in the step S2 and the alignment in the step S4 are determined by a positioning mechanism, and the positioning mechanism adopts one or a combination of infrared positioning, ultrasonic positioning, laser positioning, radar positioning, visual positioning, GPS positioning, and photoelectric positioning.
Example two
In this embodiment, as shown in fig. 2 and fig. 3, the apparatus for implementing the method of automatically replacing the mold core includes a mold core frame provided with a mold core 6, and further includes a transverse driving device 5, a push-pull mechanism 8, a lifting device 4 and a clamp 84 for clamping the mold core 6, the transverse driving device 5 is connected to the mold core frame and drives the mold core frame to move transversely, the lifting device 4 is connected to the mold core frame and drives the mold core frame to move up and down, the clamp 84 is connected to the push-pull mechanism 8, and the push-pull mechanism 8 can drive the clamp 84 to drive the mold core 6 to reciprocate between a mounting position on a mold and a mounting position on the mold core frame.
When the mold core 6 is replaced, the push-pull mechanism 8 pulls the mold core 6 out of the mounting position on the mold to the mold core frame, and the transverse driving device 5 drives the mold core frame to move transversely and drives the mold core 6 to be replaced to move transversely; when the lifting device 4 drives the die core frame to do lifting motion, the die core 6 to be replaced is driven to lift; the push-pull mechanism 8 pushes the die core 6 to be replaced out of the die core frame to the mounting position of the die core 6 on the die for use. The device for automatically replacing the mold core can stably carry the mold core 6 to the mold mounting position or move the mold core out of the mold mounting position, thereby realizing the automatic replacement of the mold core 6.
As shown in fig. 9, the mold core frame includes a bottom plate 3 and a plurality of rows and columns of the bin 2 regularly disposed on the bottom plate 3, the mold core 6 is slidably connected to the bin 2, and the mold core 6 is slidably connected to the mold. When in use, the mould core 6 can be conveniently pushed to move between the mould and the bin body 2.
The die comprises a die core frame, and is characterized by further comprising a conveying track 7, wherein two ends of the conveying track 7 are respectively aligned with the installation position of the die core 6 on the die and the installation position of the die core 6 on the die core frame, and the die core 6 is connected with the conveying track 7 in a sliding mode. In practice, the transporting rails 7 can guide the movement of the mold inserts 6 between the bin and the mold, and the transporting rails 7 can support the mold inserts 7.
As shown in fig. 3 and 4, the transverse driving device 5 includes a first motor 511 and a transmission mechanism for converting the rotation of the first motor 511 into the linear movement of the bottom plate 3, the first motor 511 is connected with the transmission mechanism, and the transmission mechanism is connected with the bottom plate 3; the base is arranged below the bottom plate 3, and the bottom plate is connected above the base 1 in a sliding manner. Specifically, as shown in fig. 3, the base 1 is fixedly provided with a first guide rail 12, the bottom plate 3 is fixedly provided with a first sliding block 32, the first guide rail 12 is slidably connected to the first sliding block 32, and when the first sliding block 32 moves along the first guide rail 12, the bottom plate 3 and the portion thereon also move along the first guide rail 12 along with the first sliding block 32, so as to realize the lateral movement of the mold insert 6.
The transmission mechanism comprises a first transmission mechanism 51 and a second transmission mechanism 52, the first transmission mechanism 51 is in transmission connection with the second transmission mechanism 52, and the second transmission mechanism 52 is connected with the bottom plate 3.
As shown in fig. 4, the first transmission mechanism 51 includes a first timing belt 514, a first timing pulley 512 and a second timing pulley 513 connected by the first timing belt 514, and an output end of the first motor 511 is connected to the first timing pulley 512.
As shown in fig. 4, the second transmission mechanism 52 includes a transmission wheel 522 and a rotating shaft 521, the rotating shaft 521 connects the transmission wheel 522 with the second timing pulley 513, and the transmission wheel 522 is connected with the base plate 3. In practice, the first motor 511 is operated to drive the first synchronous pulley 512, to drive the first synchronous pulley 514, and further to drive the second synchronous pulley 513, so that the rotating shaft 521 rotates, and the rotating shaft 521 drives the driving wheel 522 to rotate, so that the bottom plate 3 connected with the driving wheel 522 moves along the first guide rail 12.
Two sets of driving wheels 522 are provided, the rotating shaft 521 passes through the second synchronous belt wheel 513, and two ends of the rotating shaft 521 are respectively connected with the two sets of driving wheels 522 to keep the stability of the second transmission mechanism 52.
The base 1 is provided with a through hole for the transmission wheel 522 to pass through, and the transmission wheel 522 passes through the through hole and is connected with the bottom plate 3.
As shown in fig. 3 and 4, the bottom plate 3 is provided with a rubber belt 35, the rubber belt 35 faces the through hole, the driving wheel 522 is a grinding wheel, and the grinding wheel penetrates through the through hole to be connected with the rubber belt 35 in a matching manner. In practice, the rotation shaft 521 drives the grinding wheel to rotate, the friction between the grinding wheel and the rubber belt 35 causes the rubber belt 35 to move, and the bottom plate 3 and the upper part thereof move, so that the mold core 6 moves transversely.
Or the bottom plate 3 is provided with a rack which is opposite to the through hole, the driving wheel 522 is a gear, and the gear penetrates through the through hole to be meshed with the rack. In practice, the rotating shaft 521 drives the gear to rotate, the gear is meshed with the rack to move the rack, the bottom plate 3 and the part above the bottom plate move, and the mold core 6 moves transversely.
As shown in fig. 3, a photoelectric sensor 13 for transverse positioning is disposed on the base 1, the photoelectric sensor 13 positions the mold insert 6 to be replaced to a vertical plane of a taking position, and the first motor 511 stops working.
As shown in fig. 5, the lifting device 4 is a piston cylinder, a cylinder body 41 of the piston cylinder is fixedly arranged on the base 1, and a piston rod 42 of the piston cylinder drives the bin body 2 to move up and down along the base 1. Specifically, the air inlet and the air outlet in the cylinder body 41 are controlled, so that the piston rod 42 moves up and down relative to the cylinder body 41, and the piston rod 42 drives the bin body 2 to move up and down, thereby realizing the lifting of the mold core 6.
The lifting device 4 further comprises a lifting platform 44 abutting against the bin body 2, and the piston rod 42 is fixedly connected with the lifting platform 44.
As shown in fig. 6, the base 1 has a first opening 11, the bottom plate 3 has a second opening 31, and the elevating platform 44 is abutted against the bottom of the bin 2 through the first opening 11 and the second opening 31 in sequence. When the piston rod 42 rises, the lifting platform 44 rises to drive the bin body 2 to rise, and further realize the rising of the die core 6; when the piston rod 42 descends, the lifting platform 44 descends to drive the bin body 2 to descend, and further the mould core 6 descends.
The elevating assembly 4 includes a guide assembly for guiding the elevating table 44 to stably move.
As shown in fig. 5 and 6, the guiding assembly includes a lifting rod 45 and a second guide sleeve 431 sleeved with the lifting rod 45, the second guide sleeve 431 is disposed on the base 1, and the lifting rod 45 is connected to the lifting table 44.
A fixing plate 43 is fixedly connected between the base 1 and the cylinder 41, and the second guide sleeve 431 is arranged on the fixing plate.
The cylinder 41 is fixedly connected with a connecting seat 46, the guiding assembly further includes a first guide sleeve 461 disposed on the connecting seat 46, and the first guide sleeve 461 is sleeved with the lifting rod 45. The first guide sleeve 461 and the second guide sleeve 431 guide the lifting rod 45.
The lifting rods 45, the first guide sleeves 461 and the second guide sleeves 431 are provided with two groups, the other ends of the two groups of lifting rods 45 are connected with the connecting block 47, one ends of the two groups of lifting rods 45 are respectively connected with the two ends of the lifting platform 44, and the lifting platform 44 is supported together with the piston rod 42 to keep the lifting platform 44 and the bin body 2 to move stably.
As shown in fig. 3 and 6, the bottom plate 3 is fixedly provided with a guide rod 33, the bin 2 is provided with a guide slider 231 sleeved with the guide rod 33, and the guide rod 33 is slidably connected with the guide slider 231. Specifically, the guide rod 33 guides and limits the guide slider 231, when the lifting platform 44 is lifted, the guide slider 231 on the bin 2 slides up along the guide rod 33, the bin 2 moves up along the guide rod 33 along with the guide slider 231, and the mold core 6 is lifted; when the lifting platform 44 descends, the guide slider 231 on the bin body 2 slides down along the guide rod 33, and the bin body 2 moves down along the guide rod 33 along with the guide slider 231, so that the mold core 6 descends.
As shown in fig. 3, the push-pull mechanism 8 includes a support frame 81, a first push-pull assembly 83 and a second push-pull mechanism, the support frame 81 is installed on the base 1, the second push-pull assembly is installed on the support frame 81, the first push-pull assembly 83 is installed on the second push-pull assembly, an output end of the first push-pull assembly 83 is connected with the clamp 84, and the first push-pull assembly drives the clamp 84 to drive the mold core 6 to reciprocate between the cabin 2 and the transportation track 7.
As shown in fig. 7 and 8, the first push-pull assembly 83 includes a second motor, a second timing belt 833, and a third timing pulley 831 and a fourth timing pulley 832 connected to each other through the second timing belt 833, the third timing pulley 831 is connected to an output end of the second motor, and the clamp 84 is fixedly connected to the second timing belt 833. Specifically, the second motor drives the third timing pulley 831 to rotate, so as to drive the second timing belt 833 to move, and the clamp 84 moves along with the second timing belt 833.
As shown in fig. 7, the second push-pull assembly includes a bracket 82 slidably connected to the support frame 81 and a second cylinder 813 disposed on the support frame 81, an output end of the second cylinder 813 is connected to the bracket 82, and the first push-pull assembly 83 is disposed on the bracket 82.
As shown in fig. 8, the push-pull mechanism 8 further includes a second slider 822 and a second guide rail 821 provided on the bracket 82, the transportation rail 7 is disposed parallel to the second guide rail 821, the second guide rail 821 is slidably connected to one side of the second slider 822, and the clamp 84 is fixedly connected to the other side of the second slider 822. Specifically, when the second motor is driven to move the second timing belt 833, the clamp 84 drives the mold insert 6 to move along the second guide 821 along with the second slider 822 because the clamp 84 is fixedly connected to the second timing belt 833.
As shown in fig. 8, the push-pull mechanism 8 further includes a third sliding block 812 and a third guide rail 811 disposed on the supporting frame 81, the transportation guide rail 7 is disposed parallel to the third guide rail 811, the third guide rail 811 is slidably connected to one side of the third sliding block 812, and the second push-pull assembly is fixedly connected to the other side of the third sliding block 812. Specifically, the intake and exhaust of the second cylinder 813 are controlled, the output shaft of the second cylinder 813 drives the bracket 82 to move along the third guide rail 811, the second timing belt driving mechanism 83 is fixed to the bracket 82, the second timing belt driving mechanism 83 moves along the third guide rail 811, the second guide rail 821 is fixed to the other side of the bracket 82, the second motor is operated, and the push-pull stroke of the clamp 84 is further increased as the clamp 84 fixed to the second timing belt 833 moves along the second guide rail 822 along with the second timing belt 833.
The clamp 84 is fixedly connected with the second slider 822 through a connecting table 843.
The fixture 84 comprises a third cylinder 841 and a plurality of clamping jaws 842, one end of each clamping jaw 842 is hinged to the output end of the third cylinder 841, a pull rod 61 is arranged on the side surface of the mold core 6, the pull rod 61 is provided with a clamping groove, and the clamping jaws 842 can be clamped in the clamping groove. Specifically, the third cylinder 841 works to drive the clamping jaw 842 to open and close, so that the clamping jaw 842 is clamped in the clamping groove or the pull rod is loosened.
As shown in fig. 3, 6 and 9, the bin body 2 includes a backup plate 23, the backup plate 23 is provided with a guide portion, a bin 25 for placing the mold insert 6 is formed between the guide portion and the backup plate 23, the guide portion is provided with a groove slidably connected with the mold insert 6, and the groove can be aligned with the transportation track 7.
The guide part comprises a first guide part 21 arranged on one side of the backup plate 23, and the first guide part 21 is provided with a first groove in sliding connection with the mold core 6.
The guide part also comprises a second guide part 22 arranged on the other side of the backup plate 23, and the second guide part 22 is provided with a second groove in sliding connection with the die core 6. In particular, a bin 25 is provided between the first guide 21, the backup plate 23 and the second guide 22, the bin 25 being alignable with the transport track 7.
As shown in fig. 6 and 9, the guiding portion includes a plurality of T-shaped middle portions 24, and both sides of the middle portion 24 are respectively provided with a third groove and a fourth groove slidably connected to the die core 6. When the bin body 2 is provided with a group of middle parts 24, bin positions 25 can be formed between the two sides of the middle parts 24 and the backup plate 23 respectively, and two mould cores 6 can be placed on the bin body 2; when two or more sets of middle parts 24 are arranged, a bin 25 can be arranged between the first guide part 21 and the backup plate 23 and between the middle parts, a bin 25 can be arranged between the two adjacent sets of middle parts 24 and the backup plate 23 and between the backup plate 23 and the second guide part 22, and at least three mold cores 6 can be placed in a single bin body 2.
As shown in fig. 2 and 3, the injection molding machine is provided with a mounting block 9 for mounting the mold core 6, the transporting track 7 is aligned with the mounting block 9, and the push-pull mechanism 8 can drive the mold core 6 to reciprocate among the bin body 2, the transporting track 7 and the mounting block 9.
The control system comprises a selection interface and a controller, wherein the operation panel is connected with the input end of the controller, and the output end of the controller is respectively connected with the input ends of the first motor 511, the second motor, the cylinder body 41, the second cylinder 813 and the third cylinder 841. Specifically, a plurality of bin positions 25 on the mold core 6 and the bin body 2 are numbered, the mold core 6 is placed on the bin position 25 with the corresponding number, the mold core 6 with the corresponding number is selected on the selection interface, the controller controls the first motor 511, the second motor, the cylinder body 41, the second cylinder 813 and the third cylinder 841 to work, and the selected mold core 6 is pushed into the mounting block 9 on the injection molding machine after being conveyed to the taking position.
The bin 25 corresponding to the mold insert 6 to be replaced is aligned with the transportation rail 7 in the height direction and is staggered in the horizontal direction, the controller firstly controls the first motor 511 to make the driving wheel 522 drive the bottom plate 3 to move, when the photoelectric sensor 13 detects that the corresponding bin position 25 is aligned in the vertical direction, the third cylinder 841 is controlled to enable the clamping jaw 842 to clamp the pull rod 61 on the side surface of the mold core 6, the second cylinder 813 is controlled to enable the support 82 and the second synchronous belt driving mechanism 83 on the support to move along the third guide rail 811 to drive the clamp 84 and the mold core 6 to move on the conveying track 7, the second synchronous belt is driven to drive the clamp to move along the second guide rail 821 by controlling the second motor to operate, the stroke of the mold core 6 is further increased, the mold core 6 is finally pushed into the mounting block 9, the controller controls the third cylinder 841 to enable the clamping jaw 842 to loosen the pull rod 61, and then the second cylinder 813 and the second motor are controlled to enable the clamp to retract in the original path.
The bin position 25 of the mold core 6 to be replaced corresponding to the serial number is staggered with the transportation track 7 in the height direction and the vertical direction, the controller controls the first motor 511 to operate firstly, the driving wheel 522 drives the bottom plate 3 to move, when the photoelectric sensor 13 detects that the corresponding bin position 25 is aligned in the vertical direction, the controller controls the cylinder body 41 to enable the lifting platform 44 to ascend or descend for a certain height, when the corresponding bin position 25 is aligned with the transportation track 7, the controller controls the third cylinder 841 to enable the clamping jaws 842 to clamp the pull rod 61, then controls the second cylinder 813 and the second motor to drive the clamp 84, further drives the mold core 6 to be transported to the mounting block 9 from the bin position 25 along the transportation track 7, and then controls the third cylinder 841 to enable the clamping jaws 842 to release the pull rod 61, and then controls the second cylinder 813 and the second motor to enable the clamp 84 to return to the original path.
In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A method for automatically replacing a mold core is characterized in that the mold core is used and positioned at a mold mounting position, and the mold core to be replaced is arranged on a mold core frame; the method is characterized in that:
the die core frame comprises a plurality of rows of bin bodies which are regularly arranged, the die cores to be replaced are arranged in the bin bodies, and the die core frame respectively realizes transverse movement and longitudinal movement under the driving action of a transverse driving device and a lifting device; the movement of the used mold core or the mold core to be replaced between the mold installation position and the mold core frame is realized through a push-pull mechanism and a clamp, the clamp is connected with the push-pull mechanism, and the clamp is used for clamping the used mold core or the mold core to be replaced;
the method comprises the following steps:
s1: determining a first installation position of the in-use mold core on the mold core frame according to the type of the in-use mold core, and planning a first movement path of the mold core frame according to the first installation position;
s2, controlling the transverse driving device and/or the lifting device to move according to the first movement path in the step S1, so that the first installation position is aligned with the mold installation position;
s3: controlling a push-pull mechanism to drive a clamp to move to the side of the used mold core, then controlling the clamp to clamp the used mold core, and then controlling the push-pull mechanism to drive the clamp to clamp the used mold core to move to a first installation position;
s4: planning a second movement path of the mold core frame according to a second installation position of the mold core to be replaced on the mold core frame;
s5: controlling the lateral driving means and/or the lifting means to move according to the second movement path described in the step S4 such that the second mounting position is aligned with the mold mounting position;
s6: and controlling the clamp to clamp the to-be-replaced mold core, then controlling the push-pull mechanism to drive the clamp to clamp the to-be-replaced mold core to move to the mold installation position, and then controlling the push-pull mechanism to drive the clamp to return to the initial position.
2. The method for automatically replacing a mold core according to claim 1, wherein the mold core to be replaced is slidably mounted at a first mounting position or a mold mounting position, and the mold core to be replaced is slidably mounted at a second mounting position or a mold mounting position.
3. The method for automatically exchanging cores according to claim 2, wherein a transportation rail is provided between the mold mounting position and the first mounting position or between the mold mounting position and the second mounting position for guiding the movement of the in-use core and the core to be exchanged.
4. The method of any one of claims 1 to 3, wherein the alignment in step S2 and the alignment in step S4 are determined by a positioning mechanism, and the positioning mechanism is one or a combination of infrared positioning, ultrasonic positioning, laser positioning, radar positioning, visual positioning, GPS positioning, and photoelectric positioning.
5. The device for realizing the method for automatically replacing the mold core according to any one of claims 1 to 4 comprises a mold core frame provided with the mold core (6), and is characterized by further comprising a transverse driving device (5), a push-pull mechanism (8), a lifting device (4) and a clamp (84) for clamping the mold core (6), wherein the transverse driving device (5) is connected with the mold core frame and drives the mold core frame to move transversely, the lifting device (4) is connected with the mold core frame and drives the mold core frame to move up and down, the clamp (84) is connected with the push-pull mechanism (8), and the push-pull mechanism (8) can drive the clamp (84) to drive the mold core (6) to reciprocate between the installation position on the mold and the installation position on the mold core frame.
6. The device for automatically replacing the mold cores according to claim 5, wherein the mold core frame comprises a bottom plate (3) and a plurality of rows and columns of the chamber body (2) which are regularly arranged on the bottom plate (3), the mold cores (6) are slidably connected with the chamber body (2), and the mold cores (6) are slidably connected with the mold.
7. The apparatus for automatically replacing a mold core according to claim 6, further comprising a transportation rail (7), wherein two ends of the transportation rail (7) are respectively aligned with the installation position of the mold core (6) on the mold and the installation position of the mold core (6) on the mold core frame, and the mold core (6) is slidably connected with the transportation rail (7).
8. The apparatus for automatically changing mold cores according to claim 6 or 7, wherein the lateral driving means (5) comprises a first motor (511) and a transmission mechanism for converting the rotation of the first motor (511) into the linear movement of the base plate (3), the first motor (511) is connected with the transmission mechanism, and the transmission mechanism is connected with the base plate (3); the base (1) is arranged below the bottom plate (3), and the bottom plate (3) is connected above the base (1) in a sliding mode.
9. The device for automatically replacing the mold core according to claim 8, wherein the lifting device (4) is a piston cylinder, a cylinder body (41) of the piston cylinder is fixedly arranged on the base, and a piston rod (42) of the piston cylinder drives the bin body (2) to move up and down along the base (1).
10. The device for automatically replacing the mold core according to claim 8, wherein the push-pull mechanism (8) comprises a support frame (81), a first push-pull assembly (83) and a second push-pull assembly, the support frame (81) is installed on the base (1), the second push-pull assembly is installed on the support frame (81), the first push-pull assembly (83) is arranged on the second push-pull assembly, and the output end of the first push-pull assembly (83) is connected with the clamp (84).
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| CN202110945492.1A CN113843968A (en) | 2021-08-17 | 2021-08-17 | Method and device for automatically replacing mold core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110945492.1A CN113843968A (en) | 2021-08-17 | 2021-08-17 | Method and device for automatically replacing mold core |
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| CN113843968A true CN113843968A (en) | 2021-12-28 |
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| JP2003311781A (en) * | 2002-04-25 | 2003-11-05 | Canon Electronics Inc | Mold changing device of injection molder |
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| CN111805842A (en) * | 2020-07-14 | 2020-10-23 | 孙超月 | Working method of rapid die change mechanism for injection molding machining |
| CN211993903U (en) * | 2019-12-27 | 2020-11-24 | 苏州晟炅精密电子有限公司 | Binding post is mould frame for injection mold |
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|---|---|---|---|---|
| JPS58222827A (en) * | 1982-06-22 | 1983-12-24 | Sumitomo Heavy Ind Ltd | Automatic exchanger for injection molding die |
| JPS63233813A (en) * | 1987-03-20 | 1988-09-29 | Sekisui Chem Co Ltd | Automatic mold changing method in injection molding equipment |
| JPH02128805A (en) * | 1988-11-09 | 1990-05-17 | Japan Steel Works Ltd:The | Device of recognizing and arranging mold for exchange of mold |
| JPH03278922A (en) * | 1990-03-29 | 1991-12-10 | Toshiba Mach Co Ltd | Automatic mold exchange system |
| JP2003311781A (en) * | 2002-04-25 | 2003-11-05 | Canon Electronics Inc | Mold changing device of injection molder |
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